Rope-clamp.



A. LEHMANN.

ROPE CLAMP.

APPLICATION FILED MAR. 16. 1917.

Patented 'Mar. 19,1918.

IN VEN TOR A TTORNE Y UNITED STATES PATENT "OFFICE.

ADOLPH LEHMANN, OF HICKSVILLE, NEW YORK, ASSIGNQR '10 MAIBEL CHRIST, OF

1 HIQKSVILLE, NEW YORK.

norn cnmr.

together the broken ends of a rope or for securing two portions of rope to form a continuous unit,-

My device has for its particular objects and advantages the construction of a member usually formed of metal and which shallbe quick and simple in operation, and-simple in construction so that it will not get out of order.

- Further, certain of the parts are quite automatic in operation and because of the automatic features the device may be attached or released with great rapidity.

The construction and operation of my device will-be fully .set forth as the specification progresses.

The .followin is what I consider a good means of carrymg out this invention and theaccompanying drawings should be referred to for a complete understanding of the specification whlch follows:-

In the drawings:- 7 Figure 1 is a side elevation of a completed device.

Fig. 2 is a plan view thereof. Fig. 3 is a plan view of one of the jaws. Fig. 4 is an end elevation of a complete clamp member. a

Fig. 5 is a sectional view of -one of the jaws.

Fig. 6 shows in elevation a spring. Fig.7 is a sectional view of one ofthe taken on the line 77 of Fig. 3. \7

Similar reference numerals indicate like parts in all of the figures where they appear.

"my device may be constructed of any What I may term as the body portion of suitable material ,such as cast steel, malleable iron, or copper or bronze. This body portion is somewhat oval in sha e being ofa great width at the center as own at land reduced at eachof its ends 2 and 3. t

At each reduced and I provide a strengthflange 4 and 5 which flanges should Specification of Letters Patent.

Application filed March 16, 1917. Serial No. 155,166.

aws and .the spring therein. This figure is Patented M31219, 1918.

be annular, and in the body member I produce apertures or openings extending quite through the body as shown at 6.

Within the body I recess out a portion of the material approximately on the lines 7 and 8' so that other members to be later described may be readily inserted or removed and at each end of the body member I provide tapered openings extending outward on the lines 9 and 10.

Fitted in each of the tapers 9 and 10 are clamps comprising opposed members 11 and 12 and 13 and 14. These members are also tapered at an angle co-incidental to the tapers 9 and 10 and within recesses in the clampin members, I arrange springs 15 and shown the tapered portion of the body member closes the jaws together, but when the jaws are moved inward as are 13 and 14 the spm'ngs open the iaws away from each other and in this position a rope may be readily inserted.

Should it be desired that the jaws be removed it isonly necessary to move them to the position shown by 13 and 14 and then b removing the springs 17 and 18 the aws may be withdrawn. The taper of the parts prevents a removal of the jaws outwardthrough their tapered passages, and as the aws are each provided with a collar or enlargement 21, 22 and 23, the springs Wlll cause these enlargements to engage the body member and will prevent the removal of the jaws until the springs are removed. Thus it will be seen that the jaws or clamps cannot accidentally be displaced or lost.

In forming the jaws I'have constructed them so that they willpositlvely engage a rope inserted between them. To accomplish this I provide each jaw with a V-shaped trough 24 and 25 extending the full length' of the 'aw and I may roughen the interior of each shaped trough as shown at 26. It will however be understood that although at 26 I have shown longitudinal teeth or pm jections any series of corrugations or serrations may be employed.

At 27 and 28 I indicate that certain portions of the clamping members are reduced. This is merely for the purpose of reducing the frictional area of the clamping members although I may introduce a lubricant such as grease into these reduced portions.

It will be noted that the springs are introduced into annular grooves turned in the jaw members, and that these grooves are of sufficient depth to retain the springs away from the rope engaging portions of the jaws. The

grooves are, however, open and when a rope is removed the springs may be withdrawn or removed through their respective grooves.

It will also be noted that the free ends of each spring are turned inward to a very slight degree so as to prevent the springs catching on their co-incidental grooves.

Modifications may be made within the scope of the appended claims without departing from the principle or sacrifioin the advantages of this invention. Any 0% the proportions of my device may be changed, as the device will be constructed to provide the strength re uired for a given size of rope.

Having care ully and fully described my invention what I claim and desire to secure by Letters Patent is:

1. A rope clamp comprising a hollow body member having a tapered opening at each end thereof, relatively tapered jaws at each end of said body member and a spring secured within said jaws for urging them away from each other.

2. A rope clamp having a body member of generally oval shape and a central aperture therethrough, tapered apertures one at each end of said body member and relatively tapered clamps in sald tapered apertures and closed by an outward movement.

3. A rope clamphaving a generally oval shaped body member provided with a centrally disposed aperture, tapered apertures extending longitudinally of said body member and at the ends thereof, correspondingly tapered clamping members in said body member and adapted to be closed by a relative movement in said body member, each said clamping member being provided with a spring for urging the jaws of each said clamping member away from each other all combined for joint operation as and for the purpose set forth.

Signed at New York city, in the county and State of New York, this 13th day of March, 1917.

. ADOLPH LEHlWANN. Witrsses S. MARK, ARTHUR Pnnrrs MARR. 

